挡水围堰粘土铺盖防渗技术

Anti-seepage technique of clay blanket for cofferdam

文章结合工程实例,从防渗原理、适用范围、抛投区流速与水深等方面入手,论述了挡水围堰粘土铺盖防渗技术。得出:在中低水头水电工程挡水土石围堰施工中,采用各种型式的粘土防渗,可节省成本,缩短工期。

Combining with the project,the paper introduces anti-seepage technique of clay blanket for cofferdam from the aspects of anti-seepage principle,application scope,speed and depth in dumping area,and so on.The result shows various types of clay anti-seepages could save cost and shorten construction period in construction of earth-rock cofferdam for medium and low water head water power engineering.